Matthias - floor tiles atlases were introduced much earlier than that, probably
in 0.12.1 indeed.

At any rate, CB8, your graphics card is unfortunately not supported by
FreedroidRPG as it stands. We require support for 2048-sized textures.
However the game should be able to fall back properly to non-atlas mode, so this
is an actual bug to be fixed.

Thanks a lot for the report.

Joseph, would you please look at this? Thanks!